Why can't the Hong Kong version of Apple get the verification code online?

This has nothing to do with whether your mobile phone is a Hong Kong version:

Can't receive the verification code when authenticating the mobile phone? , which may be due to the following circumstances:

1, SMS storage is full. The short message storage capacity of mobile phone is limited. If you don't clear the received SMS in time, you won't receive the follow-up SMS. It is recommended to delete the message and try again.

2. If your mobile phone is not turned on for a long time or in a place with poor signal for a long time, the short message sent to you will be invalid because it expires. Suggest to try another place; (The validity time of the verification string is: 20 minutes)

3. It is related to the local gateway. Due to the large number of local short messages in some time periods and the busy short message center, short messages may be affected, delayed or lost. I suggest you try again at another time later.

4. It is related to the SMS platform of the operator. There are also individual failures (inconsistent sorting), such as: the mobile phone number belongs to the newly opened number segment, and it is not registered in Tencent Information Center, so it is impossible to receive SP short messages. You can contact the customer service center in time, leave your corresponding mobile phone number, mobile phone location, occurrence time and specific situation, find out the reason as soon as possible, and help you solve it in time.